Belt-joint.



* no 110ML..

grain grain flesh flesh grainy grain.

v grain.

UNITED STATES Patented `April 5, 1904.

APATENT OEEICE.

BE LT-JoiNT.

SPECIFICATION formingpart of. Letters Patent No. 756,220, dated April 5, 1904. l Application led April 8, 1903. Serial No. 151,597. (No model.)

To all whom, it may concern:

Be it known that I, J oH W. ELsTUN, a citizen ofthe United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Belt-Joints, of which the following is a specification.

The object of my invention is to produce a lap-joint for leather or other material'in such manner as to economize material and so as to make a stronger and more efficient joint.

The accompanying drawings illustrate my invention.

Figure l'is a longitudinal sectional perspective of my improved joint. Fig. 2 is a section of the separate pieces of the joint, and Fig. 3 is a longitudinal section of the usual form of joint. Fig. 4 is aview of a modified form.

It has heretofore been customary in making a joint between two belts of leather or other like material for belting to take two strips 4: and 5 and bevel the end of the one from the iiesh toward the grain, so as to` make a surface 4:', and bevel the other from the grain toward the flesh, so as to make a surface 5', and then lap the two surfaces 4 and 5 and secure them together by suitable cement. As a consequence the tip 5 of the section 5 was composed of the iiesh side of the leather and was thus materially weaker than the opposite end of the joint.

In my improved joint I have succeeded in producing a joint of such form that all of the exposed tips of the lapped portions may be made from the grain side of the leather and the construction is such that the lapping portion of the joint may be made from scrap material, so that a greater length of belt may b'e made from a single hide than has heretofore been possible.

In my improved joint the two portions 6 and 7y which are to be connected are beveled from the iiesh side toward the grain side, so as to form surfaces 6l and 7 respectively, and the tip of one of the sections-as, for instance, the section 7-is beveled for a short distance from the grain side toward the flesh side, so as to form a short surface 7 adapted to lie upon the tip of the surface 6', as clearly shown in Fig. 1. I then take a piece of scrap v8 and, beginning at the middle of the iiesh leather, and therefore of maximum strength and quality and less likely to break loose.

It will be readily understood that the surface 7 need not necessarily be formed, but the tips of the two sections 6 and 7 be brought together at the crown between the two surfaces 8, if desired; but I consider the form shown in Fig. l as the better. A

The joint described may be used for con, necting any flexible materials,vbut is probably of greater value in connecting materials such as leather where there is a difference in the quality of the two faces.

I claim as my invention- 1. A joint for leather consisting of two pieces beveled in opposite directions, and a separate lapping-piece beveled from its middle in opposite directions andl attache-d to the bevelsurfaces of the overlapping pieces.

2. A joint consisting of a piece 6 having a beveled face 6/, a piece 7 having abevel-surface 7 and an oppositely-beveled surface 7, and a connecting lap-piece 8 having oppositely-beveled surfaces 8', 8'.

3. A joint for leather consisting of a piece 6 beveled from iiesh to grain to form a surface 6', a second piece 7 beveled in the opposite direction from flesh to grain, and a lappiece beveled from a medial line in opposite directions from flesh to grain, and attached to the beveled faces of the pieces 6 and 7 4. A joint for leather consisting' of a piece 6 having a beveled face 6/ from flesh to grain; a piece 7 having a beveled face 7 from flesh to grain and a second beveled face 7 from grain to iiesh; and a lap-piece8 beveled from a medial line in opposite directions from flesh to grain.

IOO

5. A joint for leather consisting of two pieces hand and seal, at Indianapolis, Indina, this 3d Feveled in -opposite ((liireotions, anlp separate day of April, A.4 D. 1903.

ripping-piece beve e from its mi e in o posite directions from esh to grain, ancl) at- JOHN W' ELSTUN [L' S] 5 taohed to the beveled surfaces of the said two Witnesses:

pieces. ARTHUR M. HooD,

In witness whereof I have hereunto set my JAMES A. WALSH. 

